232391Y4

View detailed technical data, stock status, and sourcing information for: 232391Y4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-477-0031

Item Name Code

06675

Assigment Date

06/18/1971 (55 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

round w/wrench flats chamfered head style, right-hand thread direction, 3a thread class, 1.560 inches nominal fastener length, 0.450 inches minimum and 0.460 inches maximum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.450 inches minimum and 0.460 inches maximum
Fastener Length: 1.560 inches nominal
Head Style: round w/wrench flats chamfered
Head Height: 0.400 inches minimum and 0.410 inches maximum
First Diameter From Head: 0.449 inches minimum and 0.450 inches maximum
Second Diameter From Head: 0.300 inches minimum and 0.310 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.700 inches minimum and 0.720 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 1.100 inches minimum and 1.110 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Hardness Rating: 32.0 rockwell c minimum and 36.0 rockwell c maximum overall
Externally Relieved Body Diameter Quantity: 2
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400-1 assn std single treatment response overall
Test Data Document: "81343-ams 2640 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
232391Y4	Externally Relieved Body Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-477-0031?

The FSCG of the NSN 5306-00-477-0031 is 5306

Does the NSN 5306-00-477-0031 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-477-0031 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5306-00-477-0031 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-477-0031 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5306-00-477-0031 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jun 18, 1971